Better Graphics Card or More Memory?

What would show more immediate quality of graphics and faster on-line refresher rates, a graphics card with more ram or double the memory? Im debating whether to get the 512mb ATI Card or an additional 4 gig or Memory with my new iMac. Also, why does Apple not offer the really high end ATI Cards with 1 gig of ram?

4GB RAM is plenty.
You should be able to multitask pretty well.
I mean, it depends what you do.
If you work with 3D or edit movies and REALLY need that fast rendering speed without having to close all your other apps, then yeah, go with more RAM.

But if you're just an average user, then a better video card sounds reasonable.

4GB RAM is plenty.
You should be able to multitask pretty well.
I mean, it depends what you do.
If you work with 3D or edit movies and REALLY need that fast rendering speed without having to close all your other apps, then yeah, go with more RAM.

But if you're just an average user, then a better video card sounds reasonable.

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A better video card is in my forcast. But ATI cards are available with lots more memory than 512 mb, so why doesn't Apple offer those as well?

This completely depends on what you do w/ your imac.
Since you cannot replace the video card if you change your mind later and you can w/ the RAM, Go w/ the video card.
Not to mention that as software advances the upgraded video card may show it's worth in the future even if you don't use it's full capabilities today.

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